Inorganic Chemicals Industry ›› 2023, Vol. 55 ›› Issue (9): 33-42.doi: 10.19964/j.issn.1006-4990.2022-0653

• Reviews and Special Topics • Previous Articles     Next Articles

Modification of antifouling ceramic membrane and its application of oily wastewater treatment

LI Yang(), ZANG Yihua, YUAN Biao, SHENG Chunguang   

  1. CenerTech Tianjin Chemical Research and Design Institute Co. ,Ltd. ,Tianjin 300131,China
  • Received:2022-11-03 Online:2023-09-10 Published:2023-09-19

Abstract:

Ceramic membrane is one of the most promising methods to treat oily wastewater.Membrane fouling is an inevitable phenomenon in the treatment process,leading to increased energy consumption and reduced life.Therefore,it is very important to improve the antifouling of ceramic membrane in oily wastewater treatment.Firstly,various modification methods of ceramic membranes were summarized,and the properties of modified ceramic membranes were compared.In addition to the traditional sol-gel method and dip coating method,the atomic layer deposition method was also expected to be used for ceramic membrane modification in terms of controlling the thickness of the layer and adjusting the pore diameter.Enhancing surface hydrophilicity and surface charge were two of the most commonly used strategies to improve the performance of ceramic membranes for oily wastewater treatment.Nanometer metal oxides,such as TiO2,ZrO2,Fe2O3 and graphene oxide,were considered as potential candidates for ceramic membrane modification to improve flux and reduce pollution.Passive antifouling ceramic membranes,such as photocatalysis and charged ceramic membranes,showed potential in fouling control,oil interception and flux enhancement.Finally,the market scale and development trend of ceramic membrane were prospected.It was pointed out that the research and production of high-end anti pollution ceramic membrane should be accelerated to meet the requirements of more complex oily wastewater treatment,such as oilfield polymer containing wastewater,fracturing flowback fluid,etc.

Key words: ceramic membrane, antifouling, modification, oily wastewater

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